Quantitative image contrast measures
| RSI-CM | DWI-4000 | ADC | |
|---|---|---|---|
| TC (A/C) | 5.78 (3.23) | 1.71 (0.61) | 0.91 (0.16) |
| EC (B/C) | 1.50 (1.57) | 1.17 (0.31) | 1.19 (0.10) |
| RSEa (B/A) | 0.24 (0.12) | 0.73 (0.20) | 1.33 (0.17) |
| Predicted infiltration baseline (%) 100* (C-B)/A for RSI-CM and DWI-4000b 100* (B-C)/A for ADC | 0.01 (19.68) | −7.57 (17.78) | 18.69 (11.34) |
Note:—A indicates mean intensity in tumor; B, mean intensity in edema; C, mean intensity in normal-appearing WM.
↵a Values <1 indicate greater relative sensitivity to tumor versus edema, and values >1 indicate greater relative sensitivity to edema versus tumor.
↵b Negative values may reflect tumor infiltrated edema.